Lambert's hubby Blake Shelton will once again co-host the ceremony with Luke Bryan, while both are also on tap to perform. Rounding out the line-up are Dierks Bentley, Kenny Chesney, Eric Church, Reba, George Strait, Keith Urban and Florida Georgia Line, with a special set by New Artist of the Year nominees Sam Hunt,Thomas Rhett and Cole Swindell.
Reigning Entertainer of the Year and Artist of the Decade Strait will debut new music on the telecast, while Reba returns to the ACMs for the first time in five years.
Here's hoping Lambert performs her latest hit "Little Red Wagon!" The superstar debuted a brand new video for the single on Wednesday and only ET had a sneak peek behind the scenes. Take a look in the player below.